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Author SHA1 Message Date
Eric Christopher
990bcd83b8 Not all platforms use _<func>. Duh. 
llvm-svn: 120418
 2010-11-30 09:23:54 +00:00
Eric Christopher
1a99e7ebdb Fix some grammar in comments I noticed. 
llvm-svn: 120416
 2010-11-30 09:11:54 +00:00
Eric Christopher
d8e045d29e This defaults to GenericDomain. 
llvm-svn: 120415
 2010-11-30 09:11:07 +00:00
Jay Foad
c663d7e4f6 PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void. 
llvm-svn: 120413
 2010-11-30 09:02:01 +00:00
Eric Christopher
6a21ceab5c Implement a PseudoI class and transfer the sse instructions over to use 
it.

llvm-svn: 120412
 2010-11-30 08:57:23 +00:00
Eric Christopher
73365ae8b6 Fix insertion point in pcmp expander. 
While I'm there, clean up too many \n even for me.

llvm-svn: 120411
 2010-11-30 08:20:21 +00:00
Eric Christopher
2170738538 Fix some cleanups from my last patch. 
llvm-svn: 120410
 2010-11-30 08:10:28 +00:00
Bill Wendling
ae920bcc50 Add parsing for the Thumb t_addrmode_s4 addressing mode. This can almost 
certainly be made more generic. But it does allow us to parse something like:

          ldr     r3, [r2, r4]

correctly in Thumb mode.

llvm-svn: 120408
 2010-11-30 07:44:32 +00:00
Che-Liang Chiou
df20cec4fb ptx: add ld instruction 
support register and register-immediate addressing mode

todo: immediate and register-register addressing mode
llvm-svn: 120407
 2010-11-30 07:34:44 +00:00
Chris Lattner
7d444d0682 Rewrite the main DSE loop to be written in terms of reasoning 
about pairs of AA::Location's instead of looking for MemDep's
"Def" predicate.  This is more powerful and general, handling
memset/memcpy/store all uniformly, and implementing PR8701 and
probably obsoleting parts of memcpyoptimizer.

This also fixes an obscure bug with init.trampoline and i8
stores, but I'm not surprised it hasn't been hit yet.  Enhancing
init.trampoline to carry the size that it stores would allow
DSE to be much more aggressive about optimizing them.

llvm-svn: 120406
 2010-11-30 07:23:21 +00:00
Chris Lattner
31d8d00187 death to extraneous \n's. 
llvm-svn: 120405
 2010-11-30 07:20:51 +00:00
Eric Christopher
f27f0b5234 Rewrite mwait and monitor support and custom lower arguments. 
Fixes PR8573.

llvm-svn: 120404
 2010-11-30 07:20:12 +00:00
Anders Carlsson
67e9e6234c Add a puts optimization that converts puts() to putchar('\n'). 
llvm-svn: 120398
 2010-11-30 06:19:18 +00:00
Anders Carlsson
2a46a03898 Fix a typo. 
llvm-svn: 120394
 2010-11-30 06:03:55 +00:00
Anders Carlsson
a2ad88fb73 Rename this test to FPuts.ll since it actually tests fputs. 
llvm-svn: 120393
 2010-11-30 05:59:26 +00:00
Chris Lattner
bf17250f9b rename a function and reduce some indentation, no functionality change. 
llvm-svn: 120391
 2010-11-30 05:30:45 +00:00
Nick Lewycky
87f97b60f8 Make @llvm.invariant.start not be readonly, so that it has side-effects. This 
unbreaks test/Transforms/InstCombine/invariant.ll which was broken by r120382.
This is a fix-forward to do what I think Chris intended.

llvm-svn: 120388
 2010-11-30 04:13:41 +00:00
Jakob Stoklund Olesen
59dfcec5f9 Stub out a new LiveDebugVariables pass. 
This analysis is going to run immediately after LiveIntervals. It will stay
alive during register allocation and keep track of user variables mentioned in
DBG_VALUE instructions.

When the register allocator is moving values between registers and the stack, it
is very hard to keep track of DBG_VALUE instructions. We usually get it wrong.
This analysis maintains a data structure that makes it easy to update DBG_VALUE
instructions.

llvm-svn: 120385
 2010-11-30 02:17:10 +00:00
Chris Lattner
bea813875e remove a use of llvm-dis 
llvm-svn: 120383
 2010-11-30 02:04:15 +00:00
Chris Lattner
0ec89ea5d9 remove the pointless check of MemoryUseIntrinsic from 
is trivially dead, since these have side effects.  This makes the
(misnamed) MemoryUseIntrinsic class dead, so remove it.

llvm-svn: 120382
 2010-11-30 02:03:47 +00:00
Chris Lattner
84d3d220c1 strength reduce this. 
llvm-svn: 120381
 2010-11-30 01:56:13 +00:00
Chris Lattner
cbe6b88afe getLocationForDest should work for memset as well. 
llvm-svn: 120380
 2010-11-30 01:48:20 +00:00
Chris Lattner
a4863c7557 rename doesClobberMemory -> hasMemoryWrite to be more specific, and 
remove an actively-wrong comment.

llvm-svn: 120378
 2010-11-30 01:37:52 +00:00
Chris Lattner
76977cd3c8 clean up handling of 'free', detangling it from everything else. 
It can be seriously improved, but at least now it isn't intertwined
with the other logic.

llvm-svn: 120377
 2010-11-30 01:28:33 +00:00
Chris Lattner
56b0cc6974 merge one more away 
llvm-svn: 120375
 2010-11-30 01:06:43 +00:00
Chris Lattner
8e2909e4d8 I already merged partial-overwrite.ll -> PartialStore.ll 
Merge context-sensitive.ll -> simple.ll and upgrade it.

llvm-svn: 120374
 2010-11-30 01:05:07 +00:00
Chris Lattner
496eacefab clean up DSE tests, removing some poorly reduced and useless old test, 
merging more into other larger .ll files, filecheckizing along the way.

llvm-svn: 120373
 2010-11-30 01:00:34 +00:00
Bill Wendling
a3cc011fc5 Minor cleanups. No functional change. 
llvm-svn: 120372
 2010-11-30 00:50:22 +00:00
Bill Wendling
5030f8359b s/ARM::BRIND/ARM::BX/g to coincide with r120366. 
llvm-svn: 120371
 2010-11-30 00:48:15 +00:00
Chris Lattner
083731f3d6 enhance basicaa to return "Mod" for a memcpy call when the 
queried location doesn't overlap the source, and add a testcase.

llvm-svn: 120370
 2010-11-30 00:43:16 +00:00
Bill Wendling
6bcbf9bd7c Add correct encoding for "bl __aeabi_read_tp". However, the asm matcher isn't 
able to match this yet.

llvm-svn: 120369
 2010-11-30 00:34:08 +00:00
Chris Lattner
8ec1830a01 Teach basicaa that memset's modref set is at worst "mod" and never 
contains "ref".

Enhance DSE to use a modref query instead of a store-specific hack
to generalize the "ignore may-alias stores" optimization to handle
memset and memcpy.

llvm-svn: 120368
 2010-11-30 00:28:45 +00:00
Jim Grosbach
6c0221e3ae Rename BX/BRIND/etc patterns to clarify which is actually the BX instruction 
and which are pseudos.

llvm-svn: 120366
 2010-11-30 00:24:05 +00:00
Bill Wendling
7cbe5a236c Add some encoding for the adr instruction. Labels still need to be finished. 
llvm-svn: 120365
 2010-11-30 00:18:30 +00:00
Owen Anderson
b6e1c56c79 Correct Thumb2 encodings for a much wider range of loads and stores. 
llvm-svn: 120364
 2010-11-30 00:14:31 +00:00
Chris Lattner
975dcf5ac8 my previous patch would cause us to start deleting some volatile 
stores, fix and add a testcase.

llvm-svn: 120363
 2010-11-30 00:12:39 +00:00
Jim Grosbach
5f2a3880a8 Make a few more ARM pseudo instructions actually use the PseudoInst base class. 
llvm-svn: 120362
 2010-11-30 00:09:06 +00:00
Bill Wendling
9859e95ca2 Predicate encoding should be withing {}s. And general cleanup. 
llvm-svn: 120361
 2010-11-30 00:08:20 +00:00
Bill Wendling
6b680b11e8 Predicate encoding should be withing {}s. 
llvm-svn: 120360
 2010-11-30 00:05:25 +00:00
Chris Lattner
29dd2a1569 two changes to DSE that shouldn't affect anything: 
1. Don't bother trying to optimize:

lifetime.end(ptr)
store(ptr)

as it is undefined, and therefore shouldn't exist.

2. Move the 'storing a loaded pointer' xform up, simplifying
  the may-aliased store code.

llvm-svn: 120359
 2010-11-30 00:01:19 +00:00
Bob Wilson
f5eece615c Fix the encoding of VLD4-dup alignment. 
The only reasonable way I could find to do this is to provide an alternate
version of the addrmode6 operand with a different encoding function.  Use it
for all the VLD-dup instructions for the sake of consistency.

llvm-svn: 120358
 2010-11-30 00:00:42 +00:00
Bob Wilson
1be989686c Rename VLDnDUP instructions with double-spaced registers 
in an attempt to make things a little more consistent.

llvm-svn: 120357
 2010-11-30 00:00:38 +00:00
Bob Wilson
bd3d3d2937 Add support for NEON VLD3-dup instructions. 
The encoding for alignment in VLD4-dup instructions is still a work in progress.

llvm-svn: 120356
 2010-11-30 00:00:35 +00:00
Jim Grosbach
58e4c01d0d Simplify definitions of the ARM eh.sjlj.*jmp pseudo instructions. 
llvm-svn: 120354
 2010-11-29 23:51:31 +00:00
Jim Grosbach
b796df67e9 Parameterize ARMPseudoInst size property. 
llvm-svn: 120353
 2010-11-29 23:48:41 +00:00
Jim Grosbach
81880e96fc Add a few missing initializers. 
llvm-svn: 120350
 2010-11-29 23:41:10 +00:00
Michael J. Spencer
b285e634a8 Support/PathV2: Fix 80 col. 
llvm-svn: 120349
 2010-11-29 23:35:49 +00:00
Michael J. Spencer
b3027299d1 Support/PathV2: Update comments. 
llvm-svn: 120348
 2010-11-29 23:35:35 +00:00
Chris Lattner
7670e2d8b8 prune an llvmcontext include and simplify some code. 
llvm-svn: 120347
 2010-11-29 23:35:33 +00:00
Chris Lattner
c954211f09 Generalize the darwin wrapper hack to work with generic macho triples as well as darwin ones. 
llvm-svn: 120346
 2010-11-29 23:29:54 +00:00